Search results

On some mics the shield is common with the ground. Sadelta and some Astatic mics have this done from the factory. The PTT switch or contacts disconnect the receive lines and connect the TX lines. Since the shield was no longer needed the previous owner may have converted the chassis connector to...

It is possible to change the crystal X1 (10.2417 mHz) to a higher frequency. I had done this to several of this chassis type and succeeded in having the radio on 10 meters. I remember using a leftover crystal (11.1125 mHz) from a President Washington base. Only drawback is that you have to...

This noise source may prove to be impossible to live with and you may consider moving again! The operators may be helpful then again they may tell you to go and take a hike! Try and be an ambassador for the hobby and you may gain some friends. Try to relocate your antenna as far away from...

Thanks for the links es enjoyed the chat on WWDX.... What do you think of this? Behringer Tube Ultragain MIC100 preamp, uses a 12AX7 and on sale for 40 bucks....

I have a few myself, always enjoy looking at the old ads and reading reviews. A wealth of knowledge there! Thanks for doing this! 73 mechanic

Is there a conversion like this for the HR2510 / Lincoln? TIA es 73 mechanic

That would be great to have a QSO on 12 meters! Weekends would be best and name your frequency.... 73 Rod KB8DNS aka mechanic P.S. Will you be going to Dayton this year?

I have been having a great time with my Maxlog M-8900, especially on 12 meters and ten meters. Very good reception reports and some of my contacts said it sounds like one of the big three HAM rigs! As for receive the signals on my end were pretty good and the S meter is fairly accurate. Only...

Slightly off topic.... I do not know much about the shops on the East Coast but I remember a few from other areas around the country. It may be a good idea to expand this, the stories may be of interest with humor and history. 73 mechanic

It is good to keep a posting here of your finds with Arduino.... I am pretty sure there are several Yahoo groups for this now but with the controlling of other projects there should be some interest. Keep in touch and post here.... 73 mechanic

Name here is Rod and I am KB8DNS. I'm already in the Mod group on Yahoo and that is where I have been following your work with the Arduino and CB convertions. You are many steps ahead of me with Arduino. My email kb8dns@yahoo.com 73 Rod KB8DNS

Looks good so keep going! I proposed using an Arduino or DDS in a Yahoo group called CB to HAM, where the experimenters modify CBs to the HAM bands. So far this has not gone far and I am not into Arduino fully. I will keep an eye on the progress.... 73 mechanic

New antenna for me, the Tram 1480, two meter and 70 cm collinear base. I bought this at of all places.... Walmart! $45.59 and threw a little something for my XYL so it could be shipped to my door for free. Not a bad antenna, a clone of the Diamond x200 with a few others like so. Good reports...

That is true in many cases but usually at the cost of power loss and possible damage to the PA stages. Most of the amateur bands are harmonically related and chosen for that reason. So it is very possible to use one antenna for several bands.... but.... there is the matter of impedance matching...

I have used my 75 meter dipole on six meters with good reports.... no tuner either but I keep it low power. 73 mechanic

I use wire dipoles for any band 10 megahertz and lower (longer wavelength). Using aluminum dipoles at 40 or 75 meters are an engineering nightmare! 73 mechanic

Three pin potentiometers with one pin not used is a variable resistor, with all pins in circuit the pot becomes a true potentiometer in that it can reference a signal to ground or divide power or signal between two stages. Your pics show a variable resistor application, usually for setting the...

Most if not all pots are numbered or have their value marked on the metal portion of the body. Also check if it is audio or linear taper. 73 mechanic

Good radio! Pretty much a Washington with single conversion chassis.... 73 mechanic

The two channels knobs were more or less BCD (Binary Coded Decimal) switches to program the PLL frequency synthesizer. The FCC did not like these much as they covered too many frequencies and 'in-betweens'! I miss my CPI.... 73 mechanic